#define  _CRT_SECURE_NO_WARNINGS


#include "stdio.h"
void main()
{
	int x = 1, a = 2, b = 3;
	switch (x) {
	case 0: ++a;
	case 1: ++b;
	case 2: a++; b++;
	}
	printf("a=%d,b=%d", a, b);

}
